Brief Introduction
Ramming mass is a refractory material made by ramming process. It is composed of various aggregates, binders and additives. We supply different types of ramming mass, including acidic ramming mass, neutral ramming mass and basic ramming mass, as follows:
Rongsheng acidic ramming mass: silica ramming mass and quartz ramming mass, etc.;
Rongsheng neutral ramming mass: corundum ramming mass, mullite ramming mass and aluminum ramming mass, etc.;
Rongsheng basic ramming mass: magnesia ramming mass, magnesia aluminum ramming mass and aluminum magnesia ramming mass, etc.;
Technical Data
| Item/Grade | Neutral Ramming Mass | Acidic Ramming Mass | Basic Ramming Mass | ||||||
| Corundum Ramming Mass | Mullite Ramming Mass | High Alumina Ramming Mass | Silica Ramming Mass | Quartz Ramming Mass | Dolomite Ramming Mix | Magnesia Ramming Mass | Alumina Magnesia Spinel Ramming Mass | Magnesia-Alumina Spinel Ramming Mass | |
| ω (MgO)/% | / | / | / | / | / | 30-40 | ≥96 | 11-32 | 75 |
| ω (Al2O3)/% | 90 | ＞80 | 45-90 | 0.8 | / | / | ＜1.5 | 65-88 | 22 |
| ω (CaO)/% | / | / | 2 | / | / | 40-60 | / | 1 | / |
| ω (SiO2)/% | / | ＜16 | 45663 | 98 | 98.5 | / | ＜2 | 1 | / |
| Bulk Density (g/cm³) | 2.95-3.15 | 2.6 | 2.3-2.7 | 1.9-2.2 | 2.1-2.3 | 2.8-3.2 | 2.85-2.9 | 2.95-3.15 | 3.05 |
| Max Working Temperature/℃ | 1900 | 1400 | 1400-1700 | 1650 | 1600-1750 | 1580-1900 | 1800 | 1800 | 1800 |
| Application | Ramming mass is most commonly used for lining various types of kilns, such as lime kilns, cement kilns, ceramic kilns, etc. It provides excellent refractory properties and thermal isolation to withstand high temperatures and chemical attacks, protecting the kiln structure from damage. | ||||||||
Application
Compared with other same material amorphous refractory, ramming mass appears dry or semi dry loose shape, most of ramming masses don’t have cohesiveness before forming, so strong ramming is needed to get compact structure. Most ramming mass has low cold strength before sintering, middle temperature strength of some ramming mass is also not high, only when it is heated to sintering temperature, or the carbon containing compounds are coked, the ramming mass can obtain strong bonding and get high strength.
Ramming mass are mainly used as lining material of various smelting furnaces which directly contacts with molten furnace load. Besides constructing integral furnace lining, ramming mass can also be used for manufacturing large size refractory products.